1000 or thousand may refer to:

• 1000 (number), a natural number
• AD 1000, a leap year in the Julian calendar
• 1000 BC, a year of the Before Christ era
• 1000 metres, a middle-distance running event
• 1000°, a German electronic dance music magazine
• Thousand (comics), a Marvel Comics character
• "Thousand" (song), a song by Moby
• The Thousand (I Mille), the volunteers in the Expedition of the Thousand, a military action of the Italian Risorgimento, 1860

• Ram 1000, a compact pickup truck sold in Colombia, Panama, Peru, and Chile as a rebadged Fiat Toro
• Dodge 1000, a cargo van sold in Mexico as a rebadged Mitsubishi Delica
• Auto Union 1000, a small family car
• Toyota 1000, a subcompact car
• Maruti Suzuki 1000, a sedan
• LRTA 1000 class, a train in the Philippines

• 1.000 (disambiguation)
• 1000s (disambiguation), a decade, century, or millennium
• $1000 (disambiguation), various banknotes
• All pages with titles beginning with 1000
• All pages with titles beginning with Thousand
• All pages with titles beginning with A Thousand
• All pages with titles beginning with One Thousand